Nunoya is a Spanish based company specialising in Japanese fabrics retail and wholesale. Their shop is located in Barcelona's historic centre but they also have a very good on line shop. I found out about them at a fair in Milan. Take a look at the Japanese fabrics they stock in their on line shop, you'll be really impressed! From Echino to Nani Iro by Naomi Ito (stunning double gauze fabric), from kawaii to traditional motifs.
Back to the challenge: I started off by taking photos of the pouch using the white balance presets on the phone, taking the same photo using each time with a different setting. Here's the result:
Custom white balance setting